Nut-lock.



N. ANDERSON.

NUT LOCK.

APPLICATION FILED JULYE, 1913.

1,086,342. Patented Feb.10, 1914.

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TE STATS PATENT OFFICE.

NELS ANDERSON, OF HURLEY, SOUTH DAKOTA.

NUT-LOCK.

Specification of Letters Patent.

Application filed July 5, 1913. Serial No. 777,468.

To all whom it may concern:

Be it known that I, New ANDERSON, a citizen of the United States, and aresident of Hurley, in the county of Turner and State of South Dakota,have invented certain new and useful Improvements in Nut- Locks, ofwhich the following is a specification.

Thisinvention relates to nut-locks, and has for its object theconstruction of a de-' vice of this class inexpensive in manufacture yetthoroughly reliable in operation.

Another object of the invention is the provision of integral lockingmeans which does not protrude from the bolt and has no removable key orother parts.

lVith these and other objects in view, the invention will be fullyunderstood from the following description, reference being had to theaccompanying drawings forming a part of this application and in'whichlike characters of reference indicate corresponding parts throughout theseveral views, of which,-

Figure 1 is a plan view of a nut constructed in accordance with myinvention; Fig. 2 is a side elevation of the same; Fig. 3 is a verticalsection of the same, taken on the line 3-3 of Fig. 1, and locked upon abolt; Fig. t is an enlarged perspective View of the boltengaging key.

The invention consists of a nut provided with an angled groove in oneface thereof; and an angled key journaled within said groove; armed withbolt-engaging means and normally secured by spring engagement of the keywithin the groove, all of which will presently be made more clear.

Referring, now, to the illustrations, 5 is a nut, of any suitable shape,provided with an angled groove, as that formed by the intersectinggrooves, 6 and 7 the former of which communicates with the threadedopening of the nut. The key I prefer to employ comprises the cylindricalmember, 8; the handle, 9, formed integrally therewith and disposed at anangle thereto; and a lug portion, 10, carried by the member, 8. The keyportion, 8, is free to turn within the groove, 6, and is secured thereinin any edges of the groove over the key, as clearly indicated at 11.

Prior to turning or unturning the nut upon a bolt, the key is turnedinto the position indicated by the dotted lines in Fig. 1, and when insuch position, the cam, or eccentric, 10, will lie outwardly from thebolt and within a notch, 12 in the nut provided to admit it. lVhen thenut is turned to the desired point, the key is turned inwardly and thearm, or handle, 9, sprung into the groove, 7, by virtue of which,displacement of the handle is prevented and the cam securely impressedinto the threaded portion of the bolt. The nut is readily unlocked byinserting a pointed instrument at the point, 13, between the end of thehandle and the bottom of the groove, 7.

Where nuts are not turned into engagement with seats, as is the casewith vehicleaXle burs, etc., the bolt, or externally-threaded members,may be provided with longitudinal slots, as at 14, Fig. 3, adapted to receive the cam. By virtue of this arrangement the threads are notmutilated by engagement of the cam.

Having thus described my invention, what I claim as new and desire tosecure by Let-- ters Patent, is, r

1. An article of the class described comprising a nut having twoconverging grooves in one face thereof, disposed at an angle each to theother, and one of said grooves communicating laterally with the threadedopening of the nut; an angled key, one portion of which isrotatably-secured within the latter groove and the other portion adaptedto be sprung into the other groove; and bolt-engaging means on therotatable portion of the 2. The combination with a longitudinallyslottedbolt, of a nut having two grooves in one face thereof, each intersectingthe other, and one of said grooves communicating laterally with thethreaded opening of the nut; a key mounted to turn within the lattergroove; a lug carried by said key and adapt- Patented Feb. to, 1914.

ed to engage the slotted portion of the bolt In testimony whereof I havehereunto set when the key is turned in one direction and my hand, this28 day of June, in the presence disengaged from said slotted portionWhen of two Witnesses.

turned in the opposite direction; and a NELS ANDERSON. handle secured atan angle to said key and Witnesses:

adapted to be normally-secured Within the J. C. GILBERT,

other groove. A. J. ALLEN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

' Washington, D. G.

